I grow for my own medicinal needs and have for over 15 years....picky about harvest as I have need for the UP side as well as the couch lock side of some strains so my harvest are pretty specific as far as maturity...
I'm now finishing/drying/curing several auto (1 photo) strains for my christmas gift bags and took note of grow times, seed to chop. All were grown the same everything under a combo hps/blurple and harvested at 30% amber...not early and no later...dunno if weather changing had any effect on ripening as they finished during the fall changes.....
Sweet Seeds Red Poison..59-60 days
Fastbuds GSC..67 days
Stone's Moon Stone..67 days
Rocbudinc Purple scoops..70 days
HSO Blue Dream ...still ripening at 74 days
....appears to be 2 weeks from harvest.
Rocbud PHOTO Ghost Breath Mint...72 days flower/3 weeks veg.
I think I've got my gift bags bout figured out.
I don't post this to prove anything or for any comparison stuff...been growin a long time for my own meds and my gift recipients feedback is always wanting more. Over the years, I've let autos go longer and perhaps yeilds improved but potency actually decreases after a few days/weeks.
Really don't care what others say about autos...they've satisfied my growing urge and my medicinal needs for a long time.